Liquid reagents, unit in plastic case, 3 round vials, sealing rings, 1 stirring rod, 1 brush, 1 syringe Precise results using high-quality interference filters Versatile, compact and: The benchtop photometer MD200 combines high-quality interference filters with long-term stable LEDs as light sources in a high-precision optic. The result: precise measurement results at all times - no matter where you use it. Versatile use The MD200 photometer can be used in almost all areas of water analysis. Precise and low maintenance The high-precision optics, which in addition to long-term stable LEDs as light sources, also offer high-quality interference filters, ensure precise and reproducible measurement results. In addition, these components make the photometer low-maintenance. User friendly The devices impress with their ease of use, ergonomic design and compact dimensions, which makes handling the devices easy and safe. Reagents Use long-term stable Lovibond^® reagent tablets (5-10 years guaranteed minimum durability) or Lovibond^® liquid reagents.